Which circle has a radius that measures 10 units?

Answer

The 2nd circle (circle F)

Explanation

The radius of a circle is the distance between the centre and the circumference of the circle.

Radius is half the diameter.

From the diagrams given; D and H are not the diameters.

In circle G, the diameter is 10. So, its radius is 5.

In circle F, the diameter is 20. So its radius is half of 20. That is 10.

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!